Split Supersymmetry in String Theory

Details Split Supersymmetry in String Theory Split Supersymmetry in String Theory

2005-10-05

arxiv.org/abs/hep-th/0510037v1

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 3 figures, prepared for the Proceedings of PASCOS-05 and of CORFU2005 Summer Institute

Scientific paper

10.1063/1.2149701

Type I string theory in the presence of internal magnetic fields provides a concrete realization of split supersymmetry. To lowest order, gauginos are massless while squarks and sleptons are superheavy. For weak magnetic fields, the correct Standard Model spectrum guarantees gauge coupling unification with \sin^2{\theta_W}=3/8 at the compactification scale of M_{\rm GUT}\simeq 2 \times 10^{16} GeV. I discuss mechanisms for generating gaugino and higgsino masses at the TeV scale, as well as generalizations to models with split extended supersymmetry in the gauge sector.

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